Apparatus for the manufacture of concrete bricks



No. 753,249; I PATENTED MAR. 1, 1904.

" L. J. DUMM.

APPARATUS FOR THE MANUFACTURE DP CONCRETE BRICKS, 6:0.

I APPLICATION FILEDNOV. 21, 1903. no 1101121.. 5 SHEETSSHEET 1 E :Jvwemtoz .7 I I .ZeeJDzzmm flaw $13 [$7 Qttoznago PATENTED MAR. 1, 1904. L. J. DUMM.

APPLIGATION FILED N67. 21. 1902.

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APPARATUS FOR THE MANUFACTURE OF CONCRETE BRICKS, 8w.

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PATENTED MAR. 1, 1904.

I L. J. DUMM;

APPARATUS FOR THE MANUFACTURE OF CONCRETE BRICKS, 6w.

APPLICATION FILED NOV. 21, 1903.

NO MODEL.

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' L. J. DUMM. APPARATUS FOR THE MANUFACTURE OF CONCRETE BRICKS, 6w.

APPLICATION FILED NOV 21, 1903. I

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PATENTED, MAR. 1, 1904..

L. J. DUMM. APPARATUS FOR THE MANUFACTURE OF GONGRETEIBRIGKS, 8w.

APPLICATION FILED NOV/21, 1903.

N0 MODEL.

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Patented March 1, 1904.

UNITED STATES PATENT OFFIC LEE J. DUMM; OF COLUMBUS, OHIO.

APPARATUS FOR THE MANUFAOTURE.OF. CONCRETE BRICKS, 81,0.

SPECIFICATION forming part of Letters Patent No. 753,249, dated March 1, 1904.

Application filed November 21, 1903. Serial No- 182,102. (No model.) A

T0 at whom it may concern."

Be it known that 1, LEE J (D i i a citizen of the United States, residing at Columbus, in the county of Franklin and State of Ohio, have invented certain new and useful Improvements in Apparatus for the Manufacture of Concrete Brick or Blocks; and I do hereby declare the following to be a full, clear, and exact de-: scription of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

The object of thisinvention is to provide an improved apparatus for the rapid multiplication of' brick or blocks of cement or artificial stone. j

The invention consists in the construction and combination of parts hereinafter described and claimed.

In the accompanying drawings, Figure 1 is a top plan view, parts being broken out. Fig. 2 is an elevation of the right-hand end as shown in Fig. 1, a portion broken out. Fig.

' 3 is an elevation of the left-hand side of the 6 is a sectional view the same as Fig. 1, ex-

cept that it shows the mold-forming partitions elevated and filled with brick. Fig. 7 is a section on the plane 2 2 looking to the left. Figs. 8, 9, and 10 are side, end, and plan views of a slotted plate containing knives or dividers which are used to divide the cement or concrete into sections constituting brick or blocks. Figs. 11 and 12 are horizontal and vertical sections of the sides of the moldQaox, showing how ornamental designs can be. molded in the brick or blocks. Figs. '13 and 14 are a plan and a section, respectively, illustrating how the apparatus can be used for the manufacture of large stones or blocks. Fig. 15 is a detail is elevated.

Like characters of reference in the several views designate corresponding parts.

The frame in which the operating parts are supported comprises a top or table 1, with a large rectangular opening in its center, legs 1 and cross-ties orgirders l connecting the L0- cated fixedly and slightly above the plane of the top or the table is a grid 2, that is supported in said position by means of a vertical web 2 the base 2* of which is supported longitudinally of the frame between the girders 1 Sliding vertically on the web 2 is a plate 3, rising from which is a series of parallel partitions 3", fitting and projecting into and capable of movement through the interstices of the grid 2. The plate 3 has at each end a horizontal projection 3 extending beyond the girders 1 and depending vertically from the extremities of the projections 3 is a rack 3.

These racks are engaged by spur-gears 4, fixed on a shaft fl-journaled on the girders 1", said shaft also having a larger gear 4' engaged by a pinion 4, mounted in one of the legs of the table and having a crank 45, by which it can be turned. The shaft of the pinion r is provided with a ratchet 4 engaged by a pawl 4 (see Fig. 15) to lock the gearing, and therefore the plate 3, bearing the partitions 3 at the position to which they are raised from time to time.

" Supported movably on and'separably vertically with respect to the plate 3 is a rectangular frame 5, having hinged thereto side pieces 5 and end pieces 5", constitutingasurrounding box inclosi-ng the grid and the partitions. The side and end pieces can be fitted together by tongue-and-groove connection, as indicated in Fig. 1. When these side and end pieces rest on the plate 3, their upper edges lie flush with the upper edges of the-partitions 3; but in practice when the plate 3 is lifted the said side and end pieces are also lifted. The sides 5 form the-outer wall of the mold at the sides of the structure when brick or stone are molded, andthe end pieces 5 form the end of the stone when they are molded. When brick are molded, the blocks 6 are inserted between the ends of the partitions 3 and the end pieces 5 of the box, as seen in Fig. 7. The frame 5 at its ends has projections 5, and these projections, as well as those designated 3 are guided by upright portions 1 secured between the girders and the under side of the table 1. When the frame 5 has been raised and it is desired to lower the partitions 3 independently of the sides 5 and ends 5 a pin 5 is passed through a hole 5 and corresponding holes in the upper portions of the guides 1 to hold the frame carrying the sides and ends in elevated position.

7 designates a removable grid of a form and configuration corresponding to the interior of the box formed by the sides and ends, the bars thereof being of the same width' as the molding-spaces between the partitions, and the under sides of the bars are furnished with knives or dividers 7, that are shoved down into the material to divide it into bricks or blocks. The first or lowermost of the plates, which is designated 7 however, has and needs vno knives and merely serves as a device upon which the brick or blocks when molded can be removed collectively. The purpose of these plates, therefore, is not only to subdivide the material into brick form, but also to afford a frame by means of which a horizontal layer or course of the molded bricks can be collectively removed.

In operation in the manufacture of brick the partitions 3 and sides 5 and 5 are elevated a distance equal to the width of the brick. The first plate 7 b is then put in and then the end blocks 6. The molding-spaces thus formed are filled with the material of which the brick are to be formed and the upper surface smoothed ofi flush with the upper edges of the partitions and the sides and ends. The removable grid or plate 7, with knives 7 is then pressed down into the material, thus subdividing the contents of the several spaces between the partitions and sides into brick of the proper length. This operation is then repeated on top of the plate 7 as often as desired or as often as practicable with the apparatus provided. After the upper or last course has been formed the frame 5, carrying the sides and ends, is secured and the frame 3, with the partitions 3, lowered, after which the plates 7 and 7 can be removed one at a time. The sides 5 and ends 5 of course can be turned down on on their hinges. In the molding of large blocks or stone, as indicated in Figs. 13 and l&, it is only needed to fill the spaces between, say, a pair of the partitions 3 with a block 8 and substitute for the block 6 the short blocks 9 at the places indicated, when amold for molding hollow stones or blocks is provided.

As shown in Figs. 11 and 12, the side pieces 5 can be provided with a removable die 5,

dovetailed into the side, said die containing intaglio or cameo ornamental designs adapted to impart their -form to the sides of the mold ed stone or brick.

The forms and relative proportions of the parts shown can be varied.

What I claim, and desire to secure ters Patent, is

1. In an apparatus for the manufacture of brick or blocks, the combination of a relatively stationary grid, a series of partitions vmovable through the grid to form molds and a removable grid provided with knives to subdivide the material in the molds.

2. In an apparatus for the manufacture of brick or blocks, the combination of a relatively stationary grid, a series of partitions movable through the grid to form molds and a movable grid provided with knives at one side to subdivide the material in the molds and to support material for additional brick or blocks at the other side.

i 3. In an apparatus for the manufacture of brick or blocks, the combination of a relatively stationary grid, a series of partitions movable through the grid to form molds and a frame carrying laterally-movable side pieces movable vertically with the partitions.

4. In an apparatus for the manufacture of brick or blocks, the combination of a relatively stationary grid, a series of partitions movable through the grid to form molds, and a frame carrying laterally-movable side and end pieces movable with the partitions.

5. In an apparatus for the manufacture of brick or block, the combination of a relatively stationary grid, a series of partitions movable through said grid and side pieces movable with said, partitions to form molds, the partitions being movable independently of the side pieces.

6. In an apparatus for the manufacture of brick or blocks, the combination of a relatively stationary grid, a plate carrying a series of partitions adapted to fit and move through the interstices of said grid, mechanism for operating said plate, a frame carrying side pieces supported by said plate, the said frame being movable independently of the partitions.

7 In an apparatus for the manufacture of brick or blocks, the combination of a relatively stationary grid, a series of partitions movable through said grid, side pieces movable with said partitions and cooperating therewith to form molds, removable end blocks also cooperating with said partitions to form molds.

8. In an apparatus for the manufacture of brick or blocks, the combination of a relatively stationary grid, a series of partitions movable through said grid, side pieces movable with said partitions and cooperating by Let- 10 movable with said partitions and cooperating therewith to form molds and a removable block adapted to fill the'spaee between two of said partitions to form in conjunction with the partitions a core.

In testimony whereof I afiix my signature in I 5 presence of two witnesses.

LEE J. DUMM.

Witnesses:

BENJ. FINCKEL, S. W. LATHAM. 

